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Controllable cab suspension
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Patent number 6,070,681
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Issue date Jun 6, 2000
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Lord Corporation
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David M. Catanzarite
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B60 - VEHICLES IN GENERAL
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Air-spring suspension
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Patent number 4,635,961
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Issue date Jan 13, 1987
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Hyok S. Lew
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B60 - VEHICLES IN GENERAL
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2721616
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Patent number 2,721,616
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Issue date Oct 25, 1955
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B60 - VEHICLES IN GENERAL
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2164068
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Patent number 2,164,068
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Issue date Jun 27, 1939
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B60 - VEHICLES IN GENERAL
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2006409
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Patent number 2,006,409
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Issue date Jul 2, 1935
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B60 - VEHICLES IN GENERAL